More like Wolf Clan Sourcebook

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Known SpaceUniverse
universe142 books1964
About aliens.
“Give a clever species a few centuries and a working fusion drive, and it will fill the sky with problems.”
from the catalogue
Start with Ringworld →
includes Man-Kzin Wars, Ringworld, Fleet of Worlds
DuneUniverse
universe78 books1963
Space opera, about political intrigue.
“The desert planet, where empire runs on a single substance: the spice melange, which folds space, prolongs life, and unlocks prescience, and which exists nowhere else in the known universe.”
from the catalogue
Start with Dune →
includes Dune, Dune Sequels, Dune Prequels, Heroes of Dune, Background of the Dune Universe
Starship TroopersNovel
Robert A. Heinleinstandalone novel1959
Adventurous in tone, about coming of age and aliens.
HonorverseUniverse
universe83 books1993
Space opera.
“At the center stands one officer, Honor Harrington — captain, then something far larger — and the six-limbed empathic treecat who rides her shoulder.”
from the catalogue
Start with On Basilisk Station →
includes Honor Harrington, Saganami Island, Worlds of Honor anthologies, Wages of Sin, Manticore Ascendant, Expanded Honorverse, Honor Harrington Universe short fiction, Star Kingdom (Honor Harrington)
Old Man's WarSeries
series16 books2005
Space opera, adventurous in tone.
“Sign a document at 65, saying you intend to join up 10 years later.”
from the catalogue
Start with Old Man's War →
Forever WarSeries
series10 books1972
Science fiction and military science fiction, set in far future and space.
Start with Hero →